ATMEL MG-A1315 Antaris 4 supersense gps module Datasheet

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™
ANTARIS 4
SuperSense
GPS Module
User’s Manual Ver 1.03
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Item
Date
1
2007/01/06
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New Release Information
Spec reelased
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Contents
1. INTRODUCTION……….………………………………………………….….4
1.1
OVERVIEW…………….………………………………………………4
1.2
MAIN FEATURES….……………………………………………….….4
2. TECHNICAL SPECIFICATIONS……………………………….….….……. 5
BLOCK DIAGRAM ………………………………………………………………5
2.1
2.2
ELECTRICAL CHARACTERISTICS……………………………...…… 5
2.3
EVIRONMENTAL CHARACTERISTICS………………………….…… 6
2.4
PHYSICAL CHARACTERISTICS…………………………………..….. 6
2.5
Active antenna…………………………………………………………6
3. MECHANICAL DIMENSIONS……………………………………………… 7
MG-A1315…..……………..….……………………...……………..…… 7
3.1
4. BOARD CONNECTIONS………………..…………………………………... 8
5. APPLICATIONS……………………………………………….………………10
Appendix A – Data Set………………………………………………………….11
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1. Introduction
1.1. Overview
Modulestek GPS module MG-A1315 is a high sensitivity ultra low power
consumption cost efficient, compact size; plug & play GPS module board designed for a
broad spectrum of OEM system applications. This product is based on the ANTARISTM4
supersense technology and it will track up to 16 satellites at a time while providing fast
time-to-first-fix. Its far reaching capability meets the sensitivity & accuracy requirements of
car navigation as well as other location-based applications, such as AVL system. Handheld
navigator, PDAs, Wrist Watches, Personal Locators, Toll collection, Fleet Management,
pocket PC, or any battery operated navigation system.
The MG-A1315 design utilizes the latest surface mount technology and high level
circuit integration to achieve superior performance while minimizing dimension and power
consumption. This hardware capability combined with software intelligence makes the
board easy to be integrated and used in all kinds of navigation applications or products. The
module communicates with application system via TTL level with NMEA0183 protocol.
1.2. Main Feature
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Built-in high performance ATMEL chipset. 16 channels “All-in-View” tracking.
Average Cold Start in 34 seconds.
-158 dBm weak signal sensitivity with SuperSense™
Ultra Low power consumption.(38mA)
Cost-optimized architecture (No Flash EPROM)
USB Slave V1.1 (V2.0 compatible)
Support 1 USB and 2 UART ports
15 µA backup current
Support of SBAS satellites for navigation
Ultra miniature 15 x 13 mm dimension with SMT pad package
Full DGPS / WAAS / EGNOS and MSAS support
4Hz position update rate
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2. Technical Specifications
2.1. Block Diagram
2.2. Electrical Characteristics
2.1.1 General
Frequency
C/A code
Channels
2.1.2 Sensitivity
Cold Starts:
Reacquisition:
Tracking&Acquisition:
2.1.3 Accuracy
Position
Time
2.1.4 Datum
Default
Other
L1, 1575.42 MHz
1.023 MHz chip rate
16
-142dBm
-148 dBm
-158 dBm
2.5 meters CEP
2.0 m CEP DGPS / WAAS / EGNOS
50ns RMS
WGS-84
Support different datum by request
2.1.5 Acquisition Rate (Open sky, stationary requirements)
Hot start
<3.5 sec, average
Warm start
33 sec, average
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Cold start
Reacquisition
34 sec, average
< 1s
2.1.6 Dynamic Conditions
Altitude
Velocity
18,000 meters
515 m/s
2.1.7 Power
Main power input
Supply Current
Backup Power
Backup Current
3.3 ±5% VDC input.
MG-A1315 < 38mA (1.5 mA in power saving mode)
1.5~3.6V
5µA typical
2.1.8 Serial Port
Electrical interface
Protocol message
Default NMEA
one full duplex serial communication, TTL interface
NMEA, ublox binary (UBX), RTCM.
hardware baud rate setting
UART1/USB port: 9600 baud, NMEA
UART2 port: 38400 baud, UBX
2.3. Environmental Characteristics
Operating temperature range
Storage temperature range
-40 deg. C to +85 deg. C
-40 deg. C to +100 deg .C
2.4. Physical Characteristics
Dimension: MG-A02S
15.0 x 13.0 x 2.2 (mm)
2.5. Active antenna
15~ 25 dB Gain recommended
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3. Mechanical Dimensions
3.1. MG-A1315
Figure 1: Board dimensions (in mm)
Figure 2: Board connections and placement diagram.
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4. Board connections
Pin
Name
Type
Description
1 RXB
I
Serial Port B
2 TXB
O
Serial Port B
3 PPS
O
One Pulse Per Second
4 TXA
O
Serial Port A
5 RXA
I
Serial Port A
6 STATUS_LED
O
Fix Status LED, if not used keep floating
7 USB_DM
I/O
USB DM
8 USB_DP
I/O
USB DP
9 RFPWRUP
O
Indicates power state of RF part
10 EXTINT0
I
External Interrupt Pin
11 V_BAT
I
Backup Voltage Supply, 1.5VDC~ 3.6VDC
12 VCC
I
DC Supply Voltage Input DC +3.3V+-5%
13 GPSMODE5 (see table 1, 2)
I
GPSMODE5 configuration, if not used keep floating
14 GPSMODE6 (see table 1, 2)
I
GPSMODE6 configuration, if not used keep floating
15 NC
NC
Not connected
16 NRESET
I
Reset, Active Low
17 VCC_RF
O
Supply Antenna Bias Voltage
18 GND
G
Reference Ground
19 RF_IN
I
GPS Signal Input, 50 ohm @1.57542GHz
20 GND
G
Reference Ground
21 GND
G
Reference Ground
22 GND
G
Reference Ground
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Baud Rate Setting
GPSMODE5/GPSMODE6 Configuration
For GPSMODE5 and GPSMODE6, it represents serial I/O configuration
(Baud rate/Output NMEA Sentences configuration).
Please refer to Table 1 for detailed description
GPSMODE6
GPSMODE5
UART1/USB
Protocol/Baud
UART2
Protocol/Baud
Messages
0
0
NMEA/19200
UBX/57600
High (see table 2)
0
1
NMEA/4800
UBX/19200
Low (see table 2)
1 (default)
0 (default)
NMEA/9600
UBX/38400
Medium (see table 2)
Table 1
Messages
High
Low
Medium (default)
NMEA port
GGA, GLL, GSA, GSV, RMC, GGA, RMC
VTG, ZDA, GRS, GST,
proprietary PUBX00, PUBX03,
PUBX04
GGA, GLL, GSA, GSV, RMC, VTG,
ZDA
UBX port
UBX-NAV, UBX-MON
UBX-MON
UBX-MON
Table 2
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5. Applications
MG-A1315 module board receiver is a high performance, ultra low power consumption,
plug &play product. These applications are as follow.
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Car Navigation
Wrist Watch
Solar Operated Device
Marine Navigation
Fleet Management
AVL and Location-Based Services
Radar detector with GPS function
Hand-Held Device for Personal Positioning and Navigation
Ideal for PDA, Pocket PC and Other Computing Devices at GPS Application
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Appendix A: Data Set 1. GGA data set
GGA--- Global Positioning System Fixed Data
Table 2 contains the values for the following example:
$GPGGA,161229.487,3723.24751,N,12158.34161,W,1,07,1.0,9.0,M, , , ,0000*18<CR> <LF>
Name
Example
Units
Message ID
$GPGGA
GGA protocol header
UTC Position
161229.487
hhmmss.sss
Latitude
3723.24751
ddmm.mmmmm
N/S Indicator
N
N=north or S=south
Longitude
12158.34161
dddmm.mmmmm
E/W Indicator
W
E=east or W=west
Position Fix Indicator 1
Description
0 = invalid
1 = GPS fix (SPS)
2 = DGPS fix
3 = PPS fix
4 = Real Time Kinematic
5 = Float RTK
6 = estimated (dead reckoning)
7 = Manual input mode
8 = Simulation mode
Satellites Used
07
Range 0 to 12
HDOP
1.0
Horizontal Dilution of Precision
MSL Altitude
9.0
meters
Units
M
meters
Geoid Separation
Units
meters
M
Age of Diff. Corr.
meters
second
Diff. Ref. Station ID
0000
Checksum
*18
<CR> <LF>
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Null fields when DGPS is not used
End of message termination
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2. GLL data set
GLL--- Geographic Position – Latitude/Longitude
Table 4 contains the values for the following example:
$GPGLL,3723.24751,N,12158.34161,W,161229.487,A*2C<CR> <LF>
Name
Example
Units
Description
Message ID
$GPGLL
GLL protocol header
Latitude
3723.24751
ddmm.mmmmm
N/S Indicator
N
N=north or S=south
Longitude
12158.34161
dddmm.mmmmm
E/W Indicator
W
E=east or W=west
UTC Position
161229.487
hhmmss.sss
Status
A
A=data valid or V=data not valid
Checksum
*2C
<CR> <LF>
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End of message termination
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3. GSA data set
GSA---GNSS DOP and Active Satellites
Table 5 contains the values for the following example:
$GPGSA,A,3,07,02,26,27,09,04,15, , , , , ,1.8,1.0,1.5*33<CR> <LF>
Name
Example
Message ID
$GPGSA
Mode 1
A
M Manual- forced to operate in 2D or 3D
mode
A Automatic-allowed to automatically
switch 2D/3D
Mode 2
3
1 Fix not available
2 2D
3 3D
Satellite Used in
solution
07
Sv on Channel 1
Satellite Used in
solution
02
Sv on Channel 2
Satellite Used
Units
Description
GSA protocol header
Sv on Channel 12
PDOP
1.8
Position Dilution of Precision
HDOP
1.0
Horizontal Dilution of Precision
VDOP
1.5
Vertical Dilution of Precision
Checksum
*33
<CR> <LF>
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End of message termination
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4. GSV data set
GSV---GNSS Satellites in View
Table 8 contains the values for the following example:
$GPGSV,2,1,07,07,79,048,42,02,51,062,43,26,36,256,42,27,27,138,42*71
$GPGSV,2,2,07,09,23,313,42,04,19,159,41,15,12,041,42*41<CR> <LF>
Name
Example
Message ID
$GPGSV
Units
Description
GSV protocol header
Number of Messages1 2
Range 1 to 3
Message Number1
1
Range 1 to 3
Satellites in View
07
Satellite ID
07
Elevation
79
Degrees
Azimuth
048
Degrees
Channel 1 (Maximum 90)
SNR (C/No)
42
DBHz
Channel 1 (True, Range 0 to 359)
Satellite ID
27
Elevation
27
Degrees
Channel 4 (Range 1 to 32)
Azimuth
138
Degrees
Channel 4 (Maximum 90)
SNR (C/No)
42
DBHz
Channel 4 (True, Range 0 to 359)
Checksum
*71
<CR> <LF>
Channel 1 (Range 1 to 32)
Range 0 to 99, null when not tracking
Range 0 to 99, null when not tracking
End of message termination
Depending on the number of satellites tracked multiple messages of GSV data may be required.
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5. RMC data set
RMC---Recommended Minimum Specific GNSS Data
Table 9 contains the values for the following example:
$GPRMC,161229.487,A,3723.24751,N,12158.34161,W,0.13,309.62,120598, ,*10<CR> <LF>
Name
Example
Message ID
$GPRMC
RMC protocol header
UTC Position
161229.487
hhmmss.sss
Status
A
A=data valid or V=data not valid
Latitude
3723.24751
ddmm.mmmmm
N/S Indicator
N
N=north or S=south
Longitude
12158.34161
dddmm.mmmmm
E/W Indicator
W
E=east or W=west
Speed Over Ground
0.13
Course Over Ground 309.62
Date
Description
knots
degrees
120598
Magnetic Variation
Checksum
Units
True
ddmmyy
degrees
E=east or W=west (Not shown)
*10
<CR> <LF>
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End of message termination
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6. VTG data set
VTG---Course Over Ground and Ground Speed
Table 10 contains the values for the following example:
$GPVTG,309.62,T, ,M,0.13,N,0.2,K*6E<CR> <LF>
Name
Example
Message ID
$GPVTG
Course
309.62
Reference
T
Course
Units
VTG protocol header
degrees
M
Speed
0.13
Units
N
Speed
0.2
Units
K
Checksum
*6E
<CR> <LF>
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Measured heading
True
degrees
Reference
Description
Measured heading
Magnetic
knots
Measured horizontal speed
Knots
km/hr
Measured horizontal speed
Kilometer per hour
End of message termination
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7. ZDA data set
ZDA---Contains information on UTC time, the data and local time
An example of a ZDA data set:
$GPZDA,130305.2,20,06,2001,00,00,*57<CR> <LF>
Name
Example
Message ID
$GPZDA
ZDA protocol header
UTC
130305.2
UTC Time: 13h 03min 05.2sec
Day
20
Day(00 … 31)
Month
06
Month(1 … 12)
Year
2001
Year
Local Zone hour
00
Reserved for data on local time(h)
Local Zone minutes
00
Reserved for data on local time(min)
Checksum
*57
Checksum
<CR> <LF>
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Units
Description
End of message termination
17
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